Mounting for telescopic sights



33-249. (HQ 793389200 5R Jan. 4, 1944. J. L. PATTERSON MOUNTING FORTELESCOPIC SIGHTS Filed Nov. 2, 1942 Inventor cc. ULUWKLHH'UMLlliQlHUllHLil to,

Patented Jan. 4, 1944 UNHTED STATES PATENT OFFICE 1 Claim.

My invention relates to improvements in mountings for telescopic gunsights, the principal object in view being to provide a simply constructed, inexpensive and easily applied mounting for attaching atelescopic sight to a rifle, or shotgun, so that it may be swung itherinto position for accurate use or into an out-of-the-way position toclear the line of vision for use of the usual gun sights.

Other and subordinate objects are also comprehended by my invention, allof which, together with the precise nature of my improvements, will bereadily understood when the succeeding description and claim are readwith referenc to the drawing accompanying and forming part of thisspecification.

In said drawing:

Figure 1 is a view in side elevation illustrating my improvements,

Figure 2 is a view in longitudinal vertical section taken on the line 22of Figure 3, and

Figure 3 is a view in vertical transverse section taken on the line 3-3of Figure 2.

Reference being had to the drawing by numerals, my improved mounting hasbeen shown therein, by way of exemplifying a preferred practice of theinvention, as forming part of the equipment of a rifle conventionallyillustrated, l designating the stock, and 2 the barrel.

The mounting comprises a bracket 3 including a flat, thin, bar-like base4 designed to be attached flatwise to the left hand side of the barrel 2to extend along the same at a suitable location, and which is preferablyset down into the stock I, as indicated at 5, for stability, and securedto the barrel by means of a pair of screws 6 extending through suitableapertures 1 in the base 4 adjacent the ends thereof, said screws beingturned into suitable screw holes, not shown, provided in said side of thbarrel 2. The base 4 is surmounted by a pair of substantiallyrectangular bearing blocks 8 upstanding from the ends of the base,respectively, and which are relatively thicker than said base andbifurcated so that each block forms a pair of upstanding ears 9 spacedapart laterally in each pair longitudinally of the gun barrel. A pair oflongitudinally aligned pivot screws Ill extend through the pairs of ears9, respectively, parallel with the axis of the gun barrel 2 and havingends threaded, as

at H, in the outermost ears Ill of the pairs.

A sight carrying frame l2 is swingably mounted on the screws H) forrocking laterally of the barrel 2 into upright and depressed positions,respectively. The frame I2 comprises a pair of right angled end bracketsi3 having inner ends fitted between the pairs of ears 9 and throughwhich the screws I0 extend. The outer ends of the brackets l3 comprisesplit, annular clamps l 4 adapted to be secured around the usual tubularcasing of a telescopic gun sight I5 adjacent opposite ends of thecasing. A cross bar It connects the brackets l3 for rocking in unison.As best shown in Figures 1 and 3, the frame I2 is adapted to be swunginto upright position to dispose the clamps hl over the barrel 2, and aswill be understood, with the axes thereof aligned and parallel with theaxis of the barrel 2 to similarly dispose the gun sight I5. On the otherhand, as will be obvious, said frame I2 may be rocked laterally into adepressed, out-of-the-way position alongside the gun stock I when it isdesired to use the usual sights, not shown.

Coacting devices are provided in the brackets l3 and blocks 8,respectively, for yieldingly locking the frame l2, with a snap action,in the firstdescribed, upright position. Such devices comprise a centralthrough bore I! in each block 8 arranged to align vertically with theaxis of the screw l 0, a screw plug l8 in the bottom of the boreadjustably supporting a coil spring l9 fitted in the bore and supportinga ball detent 2D in a position to snap when the frame I2 is in uprightposition into a concave socket 2! provided in the inner end of theappropriate bracket [3. The detents 20 may be secured to the springs ISin any suitable manner to project part way out of the bores I! forwiping engagement with the inner ends of said brackets. The clamps M areadapted to be tightened by means of suitable screws, as at 22.

The foregoing will, it is believed, suflice to impart a clearunderstanding of my invention, since the use and operation of the partshave been set forth in the foregoing in connection with the descriptionof the structure of said parts.

Manifestly, the invention, as described, is susceptible of modificationwithout departing from the inventive concept, and right is hereinreserved to such modifications as fall within the scope of the subjoinedclaim.

What I claim is:

A mounting for attaching the casing of a telescope sight to a guncomprising a bracket including a base bar for fastening flat to a gunbarrel to extend along one side thereof and provided with a pair ofupstanding bifurcated bearing blocks at opposite ends thereof, and aframe including end brackets rigidly connected together and pivotallymounted in the furcations of said bearing blocks for swinging about anaxis parallel with that of said barrel laterally thereof into and fromoverlying position relative to the barrel, said brackets embodyinglaterally offset terminal clamps for embracing said casing at oppositeends of the latter, and coacting detent devices in said blocks andbrackets, respectively, latching said frame in said overlying position,said de vices coacting with a snap action.

JAMES L. PATTERSON.

